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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Lower
None of these
Same as
Higher

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Hydraulics and Fluid Mechanics in ME
In a free vortex motion, the radial component of velocity everywhere is

non-zero and finite
zero
maximum
minimum

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Hydraulics and Fluid Mechanics in ME
Francis turbine is best suited for

Medium head application from 24 to 180 m
High head installation above 180 m
All types of heads
Low head installation up to 30 m

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water traveling out of opening in a tank filled with water is proportional to

V/T
Head of water (h)
h/2
h²

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Hydraulics and Fluid Mechanics in ME
The absolute pressure is equal to

Atmospheric pressure - gauge pressure
Gauge pressure + atmospheric pressure
Gauge pressure - atmospheric pressure
Gauge pressure - vacuum pressure

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Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Compressibility
Capillarity
Viscosity
Surface tension

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